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gulaghasi [49]
3 years ago
13

Which statement about is true? –3 is an extraneous solution because solutions can never be negative. –3 is an extraneous solutio

n because substituting it into the original equation gives a false statement. –3 is a valid solution because substituting it into the original equation gives a true statement.
Mathematics
2 answers:
dem82 [27]3 years ago
7 0

Answer:

C. –3 is a valid solution because substituting it into the original equation gives a true statement.

Step-by-step explanation:

Edge 2020

Veronika [31]3 years ago
6 0

Answer:

Step-by-step explanation:

–3 is a valid solution because substituting it into the original equation gives a true statement.

You might be interested in
Put together, Tom and his father away 280 pounds. Tom’s dad weighs three times as much as he does. How much does Tom weigh?
vovangra [49]

Answer:

Tom weighs 70 pounds

Step-by-step explanation:

first, you have to set up your equation which would be, x + 3x = 280.

The x stands for Tom's weight and the 3x stands for three times Tom's weight for the dad. You would then add your like terms, then divide by 4 to get 70.

x + 3x = 280

4x = 280

280/4 = 70

x = 70

Hope this helps!

3 0
3 years ago
Are the triangles congruent? If so, determine which postulate can be used.
kupik [55]

Answer:

The triangles are ASA. hope this helped

7 0
3 years ago
PLEASE HELP!!!!
OlgaM077 [116]

Answer: she will make $232.05 in 4 weeks.

Step-by-step explanation:

Since her profit is increasing by 10% each week, then the rate at which it is increasing is in geometric progression. The common ratio, r would be 110/100 = 1.1

We would apply the formula for determining the sum of n terms of a geometric progression which is expressed as

Sn = a(r^n - 1)/(r - 1)

Where

a represents the first term of the sequence.

r represents the common ratio.

n represents the number of terms(number of weeks)

From the information given,

a = 50

r = 1.1

n = 4 weeks

Therefore,

S4 = 50(1.1^4 - 1)/(1.1 - 1)

S4 = 50(1.1^4 - 1)/0.1

S4 = $232.05

5 0
4 years ago
In ΔQRS, the measure of ∠S=90°, the measure of ∠Q=38°, and RS = 1.2 feet. Find the length of QR to the nearest tenth of a foot.
vazorg [7]

Answer:

1.9

Step-by-step explanation:

4 0
3 years ago
(1.5 x 1012) -(4.1 1010)
shusha [124]
If there is suppose to me a multiplication sign between 4.1 and 1010 the answer is -2623
4 0
3 years ago
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